Spudding attachment for well-drilling machines.



C. M. HEETER.

SPUDDING ATTACHMENT FOR WELL DRILLING MACHINES.

APPLICATION FILED SEPT-14.1916.

11 ,265,653 Patented May 7, 1918.

n. nn nrnn, or 3mm, rmmsYLv 1 srunnmc ATTACHMENT FOB WELL-DRILLING MACHINES.

Specification of Letters Patent.

Patented May 7, 1918.

Application filed September 14. 1916. Serial No.120,1 82.

T 0 all whom it may concern:

Be it known that 1, CHARLES H. Hns'rnn, a citizen of the United States, and resident of Butler, in the county of Butler and State of Pennsylvania, have invented certainnew and useful Improvements in Spudding Ab tachments for Well-Drilling Machines, of which the following is a specification.

One object of this invention is to provide improved means for connecting the jerk and anchor lines to a spudding attachment for well drilling apparatus; the improved connection afiords the attachment free pivotal movement in response to the reciprocations an elevation of the attachment, and Fig.

of the drilling cable, thereby minimizing the movement of the spudding shoe on the cable, and saving the latter from much wear to which under the present practice it is subjected. A further object is to provide an improved detachable connection between the spudding shoe and the shoe operating reins, whereby the shoe may be conveniently applied and removed from the cable.

' Inthe accompanying drawings, Figure 1 is an elevation of a portion of well drilling apparatus, showing the improved spudding attachment in operative position. Fig. 2 is 3 is a top plan of the same. Fig. 4 is a etail illustrating the permanent pivotal connection between the shoe and one of the reins.

Referring to the drawings, 2 designates the'derrick and 3 one of the base foundation timbers thereof. Atthe top of the derrick is crown pulley 30, over which passes the drill-v ing cable, one course 40f the latter extending into the well with the drilling tools (not shown) secured thereto, and the other'course 5 extending from the bull wheel 6, on which the drilling cable is wound. 7 is the handwh'eel shaft, carrying band-wheel 8 and crank 9, the latter adapted to connect interchangeably with jerk line 10, or pitman 11, of walking beam 12, the latter mounted on samson post 13. All of the parts thus far referred to are of the usual and well known 1 construction. I

It is the usual practice to start the drilling of awell by spudding, and thereafter the drilling is continued by means of the walking beam and temper screw in a manner well known in the art. For spudding, the walking beam is disconnected from the band wheel crank shaft. and the latter is utilized for reciprocating a jerk line extending to a shoe that embraces that course of the drilling cable that rises from the bull wheel to the crown pulley. By this means the cable is reciprocated. and the tools raised and lowered to accomplish the drilling strokes.

The spudding shoe 15 has a V-shaped face 15' for embracing course 5 of the drilling cable, and projecting from the opposite sides of the center of the shoe are the trunnions 16 having knob-like extremities 16'. At the front of the shoe is the hand-hold 17. The shoe is carried by the rein-forming bars or links 18, one of the latter formed with an eye 19 which is closed around one of the trunnions 16 and hence permanently secured thereto. The other rein is formed with the extremity hook 19 which removably embraces the other trunnion, whereby the shoe may be readily applied to and removed from the cable, being conveniently manipulated during that operation by handle 17. The opposite end of the reins 18 are each formed with an eye 20, and positioned therebetween is a line-connecting device 21, formed with the trunnions 22 on which the eye-formed ends of the bars are secured. A pivotal connection is thus provided between the connecting device 21 and the shoe carrying reins 18, so that the latter are afiorded free swinging movement in response to the reciprocation of the drilling cable, and thereby minimizing the sliding, friction generating and wearing engagement of shoe 15 with the cable.

Projecting fromthe connecting device 21, are the eye-formed arms 23 and 24, the for mer adapted to be secured to the jerk line 10, while arm 21 is fastened to anchor line 25 secured to the derrick floor or foundation 3. The anchor line prevents the shoe from riding upwardly on the cable, and the mode of connecting the jerk and anchor lines to the reins is such that it in no way interferes with the operation of the. shoe. The pivotal connection between the shoe and the reins takes care of the relativemovement of said parts without interfering with the effectiveness of the shoe and'without causing it toiii 2. Spudciing mechanism comprising a cable-engaging shoe, reins pivotaily connected at one end tothe shoe, and a connecting device pivotaily secured to the opposite end. of the reins and provideci With two lineengaging points, one for connecting a jerk line and the other for connecting an anchor line.

3. Spuoiding mechanism comprising a cable-engaging shoe, trunnions projecting atopposite sides of the shoe, reins mounted at one end on the trunnions, and means at the opposite end of the reins for connecting with jerk and anchor lines.

e. Spuciding mechanism comprising; a cable-engaging shoe, trunnions projecting from onposite sides thereof, reins provided with hearings for the trunnions, with one rein permanently secured to its trunnion anti 1,2ee,eoe

the other rein and trunnion separable for en tering and withdrawing the cable, and means at the opposite end of the reins for connecting with a jerk line and with an anchor line. H

5. Spndding mechanism comprising a cable-engaging shoe, reins pivotaily secured thereto, and a line connecting device pivoted to the reins and having two eye-formed. projections at apnroxiinately right angles to each other, one projection adapted to connect with a jerk line and the other to an anchor iine.

in testimony whereof I afix my signature in. the presence of two Witnesses.

CHARLES M. HEETER. Witnesses:

Lonisn SMITH9 A, a Gnmenn 

